Figure 2. Non-adjusted and IPTW-adjusted Kaplan-Meier curves of all-cause mortality in patients treated with SAV versus IAV and SEV versus BEV.

At a median follow-up of 377 (interquartile range 168-700) days, no significant difference in the risk of all-cause mortality was evident in either the non-adjusted comparison of SAV versus IAV (A) and SEV versus BEV (B) the adjusted comparison of SAV versus IAV (C) and SEV versus BEV (D). The number of patients at risk during follow-up is not applicable in the adjusted inverse probability of treatment weight analysis. BEV: balloon-expandable valve; CI: confidence interval; HR: hazard ratio; IAV: intra-annular valve; IPTW: inverse probability of treatment weighting. SAV: supra-annular valve; SEV: self-expanding valve